CVE-2016-0753

Severity: medium (CVSS 5.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 7.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2016-02-16 · updated 2026-06-17

Description

Active Model in Ruby on Rails 4.1.x before 4.1.14.1, 4.2.x before 4.2.5.1, and 5.x before 5.0.0.beta1.1 supports the use of instance-level writers for class accessors, which allows remote attackers to bypass intended validation steps via crafted parameters.

Affected products

Debian Linux: 8.0
Fedoraproject Fedora: 22, 23
openSUSE Leap: 42.1
Ruby on Rails: from 4.1.0 before 4.1.14.1; from 4.2.0 before 4.2.5.1; 5.0.0-beta1 — fixed in 4.1.14.1, 4.2.5.1

How to fix

Upgrade to a fixed version: Ruby on Rails 4.1.14.1, 4.2.5.1. Check the vendor advisory for mitigations.

References

http://lists.fedoraproject.org/pipermail/package-announce/2016-February/178041.html
http://lists.fedoraproject.org/pipermail/package-announce/2016-February/178043.html
http://lists.fedoraproject.org/pipermail/package-announce/2016-February/178047.html
http://lists.fedoraproject.org/pipermail/package-announce/2016-February/178065.html
http://lists.fedoraproject.org/pipermail/package-announce/2016-February/178066.html
http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00053.html
http://lists.opensuse.org/opensuse-updates/2016-02/msg00043.html
http://rhn.redhat.com/errata/RHSA-2016-0296.html
http://www.debian.org/security/2016/dsa-3464
http://www.openwall.com/lists/oss-security/2016/01/25/14
http://www.securityfocus.com/bid/82247
http://www.securitytracker.com/id/1034816

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